Related Clues:

• Gp. that investigated the Hollywood 10
• '50s Red Scare gp
• Org. that subpoenaed Arthur Miller
• 1950s blacklisting grp
• 1950s Communist-bashing grp. in Congress
• Grp. whose hearings led to Hollywood blacklisting
• McCarthy-era hearing grp
• Blacklisting org. of the 1940s-'50s
• Red Scare org